Jeremiah Sullivan Black (January 10, 1810 – August 19, 1883) was an American statesman and lawyer. He served as a justice on the Supreme Court of Pennsylvania (1851–1857) and as the Court's Chief Justice (1851–1854). He also served in the Cabinet of President James Buchanan, first as Attorney General (1857–1860), and then Secretary of State (1860–1861). Source: Wikipedia (en)